drivers/net/sfc/sfc_ethdev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  * Copyright (c) 2016-2017 Solarflare Communications Inc.
   5  * All rights reserved.
   6  *
   7  * This software was jointly developed between OKTET Labs (under contract
   8  * for Solarflare) and Solarflare Communications, Inc.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright notice,
  14  *    this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright notice,
  16  *    this list of conditions and the following disclaimer in the documentation
  17  *    and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  26  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  28  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  29  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <rte_dev.h>
  33 #include <rte_ethdev.h>
  34 #include <rte_pci.h>
  35 #include <rte_errno.h>
  36
  37 #include "efx.h"
  38
  39 #include "sfc.h"
  40 #include "sfc_debug.h"
  41 #include "sfc_log.h"
  42 #include "sfc_kvargs.h"
  43 #include "sfc_ev.h"
  44 #include "sfc_rx.h"
  45 #include "sfc_tx.h"
  46 #include "sfc_flow.h"
  47 #include "sfc_dp.h"
  48 #include "sfc_dp_rx.h"
  49
  50 static struct sfc_dp_list sfc_dp_head =
  51         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  52
  53 static int
  54 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  55 {
  56         struct sfc_adapter *sa = dev->data->dev_private;
  57         efx_nic_fw_info_t enfi;
  58         int ret;
  59         int rc;
  60
  61         /*
  62          * Return value of the callback is likely supposed to be
  63          * equal to or greater than 0, nevertheless, if an error
  64          * occurs, it will be desirable to pass it to the caller
  65          */
  66         if ((fw_version == NULL) || (fw_size == 0))
  67                 return -EINVAL;
  68
  69         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  70         if (rc != 0)
  71                 return -rc;
  72
  73         ret = snprintf(fw_version, fw_size,
  74                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  75                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  76                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  77         if (ret < 0)
  78                 return ret;
  79
  80         if (enfi.enfi_dpcpu_fw_ids_valid) {
  81                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  82                 int ret_extra;
  83
  84                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  85                                      fw_size - dpcpu_fw_ids_offset,
  86                                      " rx%" PRIx16 " tx%" PRIx16,
  87                                      enfi.enfi_rx_dpcpu_fw_id,
  88                                      enfi.enfi_tx_dpcpu_fw_id);
  89                 if (ret_extra < 0)
  90                         return ret_extra;
  91
  92                 ret += ret_extra;
  93         }
  94
  95         if (fw_size < (size_t)(++ret))
  96                 return ret;
  97         else
  98                 return 0;
  99 }
 100
 101 static void
 102 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 103 {
 104         struct sfc_adapter *sa = dev->data->dev_private;
 105         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 106
 107         sfc_log_init(sa, "entry");
 108
 109         dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
 110         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 111
 112         /* Autonegotiation may be disabled */
 113         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 114         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
 115                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 116         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 117                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 118         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 119                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 120
 121         dev_info->max_rx_queues = sa->rxq_max;
 122         dev_info->max_tx_queues = sa->txq_max;
 123
 124         /* By default packets are dropped if no descriptors are available */
 125         dev_info->default_rxconf.rx_drop_en = 1;
 126
 127         dev_info->rx_offload_capa =
 128                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 129                 DEV_RX_OFFLOAD_UDP_CKSUM |
 130                 DEV_RX_OFFLOAD_TCP_CKSUM;
 131
 132         dev_info->tx_offload_capa =
 133                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 134                 DEV_TX_OFFLOAD_UDP_CKSUM |
 135                 DEV_TX_OFFLOAD_TCP_CKSUM;
 136
 137         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 138         if (!encp->enc_hw_tx_insert_vlan_enabled)
 139                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 140         else
 141                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
 142
 143 #if EFSYS_OPT_RX_SCALE
 144         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 145                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 146                 dev_info->hash_key_size = SFC_RSS_KEY_SIZE;
 147                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 148         }
 149 #endif
 150
 151         if (sa->tso)
 152                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 153
 154         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 155         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 156         /* The RXQ hardware requires that the descriptor count is a power
 157          * of 2, but rx_desc_lim cannot properly describe that constraint.
 158          */
 159         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 160
 161         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 162         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 163         /*
 164          * The TXQ hardware requires that the descriptor count is a power
 165          * of 2, but tx_desc_lim cannot properly describe that constraint
 166          */
 167         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 168 }
 169
 170 static const uint32_t *
 171 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 172 {
 173         struct sfc_adapter *sa = dev->data->dev_private;
 174
 175         return sa->dp_rx->supported_ptypes_get();
 176 }
 177
 178 static int
 179 sfc_dev_configure(struct rte_eth_dev *dev)
 180 {
 181         struct rte_eth_dev_data *dev_data = dev->data;
 182         struct sfc_adapter *sa = dev_data->dev_private;
 183         int rc;
 184
 185         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 186                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 187
 188         sfc_adapter_lock(sa);
 189         switch (sa->state) {
 190         case SFC_ADAPTER_CONFIGURED:
 191                 sfc_close(sa);
 192                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 193                 /* FALLTHROUGH */
 194         case SFC_ADAPTER_INITIALIZED:
 195                 rc = sfc_configure(sa);
 196                 break;
 197         default:
 198                 sfc_err(sa, "unexpected adapter state %u to configure",
 199                         sa->state);
 200                 rc = EINVAL;
 201                 break;
 202         }
 203         sfc_adapter_unlock(sa);
 204
 205         sfc_log_init(sa, "done %d", rc);
 206         SFC_ASSERT(rc >= 0);
 207         return -rc;
 208 }
 209
 210 static int
 211 sfc_dev_start(struct rte_eth_dev *dev)
 212 {
 213         struct sfc_adapter *sa = dev->data->dev_private;
 214         int rc;
 215
 216         sfc_log_init(sa, "entry");
 217
 218         sfc_adapter_lock(sa);
 219         rc = sfc_start(sa);
 220         sfc_adapter_unlock(sa);
 221
 222         sfc_log_init(sa, "done %d", rc);
 223         SFC_ASSERT(rc >= 0);
 224         return -rc;
 225 }
 226
 227 static int
 228 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 229 {
 230         struct sfc_adapter *sa = dev->data->dev_private;
 231         struct rte_eth_link *dev_link = &dev->data->dev_link;
 232         struct rte_eth_link old_link;
 233         struct rte_eth_link current_link;
 234
 235         sfc_log_init(sa, "entry");
 236
 237 retry:
 238         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 239         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 240
 241         if (sa->state != SFC_ADAPTER_STARTED) {
 242                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 243                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 244                                          *(uint64_t *)&old_link,
 245                                          *(uint64_t *)&current_link))
 246                         goto retry;
 247         } else if (wait_to_complete) {
 248                 efx_link_mode_t link_mode;
 249
 250                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 251                         link_mode = EFX_LINK_UNKNOWN;
 252                 sfc_port_link_mode_to_info(link_mode, &current_link);
 253
 254                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 255                                          *(uint64_t *)&old_link,
 256                                          *(uint64_t *)&current_link))
 257                         goto retry;
 258         } else {
 259                 sfc_ev_mgmt_qpoll(sa);
 260                 *(int64_t *)&current_link =
 261                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 262         }
 263
 264         if (old_link.link_status != current_link.link_status)
 265                 sfc_info(sa, "Link status is %s",
 266                          current_link.link_status ? "UP" : "DOWN");
 267
 268         return old_link.link_status == current_link.link_status ? 0 : -1;
 269 }
 270
 271 static void
 272 sfc_dev_stop(struct rte_eth_dev *dev)
 273 {
 274         struct sfc_adapter *sa = dev->data->dev_private;
 275
 276         sfc_log_init(sa, "entry");
 277
 278         sfc_adapter_lock(sa);
 279         sfc_stop(sa);
 280         sfc_adapter_unlock(sa);
 281
 282         sfc_log_init(sa, "done");
 283 }
 284
 285 static int
 286 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 287 {
 288         struct sfc_adapter *sa = dev->data->dev_private;
 289         int rc;
 290
 291         sfc_log_init(sa, "entry");
 292
 293         sfc_adapter_lock(sa);
 294         rc = sfc_start(sa);
 295         sfc_adapter_unlock(sa);
 296
 297         SFC_ASSERT(rc >= 0);
 298         return -rc;
 299 }
 300
 301 static int
 302 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 303 {
 304         struct sfc_adapter *sa = dev->data->dev_private;
 305
 306         sfc_log_init(sa, "entry");
 307
 308         sfc_adapter_lock(sa);
 309         sfc_stop(sa);
 310         sfc_adapter_unlock(sa);
 311
 312         return 0;
 313 }
 314
 315 static void
 316 sfc_dev_close(struct rte_eth_dev *dev)
 317 {
 318         struct sfc_adapter *sa = dev->data->dev_private;
 319
 320         sfc_log_init(sa, "entry");
 321
 322         sfc_adapter_lock(sa);
 323         switch (sa->state) {
 324         case SFC_ADAPTER_STARTED:
 325                 sfc_stop(sa);
 326                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 327                 /* FALLTHROUGH */
 328         case SFC_ADAPTER_CONFIGURED:
 329                 sfc_close(sa);
 330                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 331                 /* FALLTHROUGH */
 332         case SFC_ADAPTER_INITIALIZED:
 333                 break;
 334         default:
 335                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 336                 break;
 337         }
 338         sfc_adapter_unlock(sa);
 339
 340         sfc_log_init(sa, "done");
 341 }
 342
 343 static void
 344 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 345                    boolean_t enabled)
 346 {
 347         struct sfc_port *port;
 348         boolean_t *toggle;
 349         struct sfc_adapter *sa = dev->data->dev_private;
 350         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 351         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 352
 353         sfc_adapter_lock(sa);
 354
 355         port = &sa->port;
 356         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 357
 358         if (*toggle != enabled) {
 359                 *toggle = enabled;
 360
 361                 if ((sa->state == SFC_ADAPTER_STARTED) &&
 362                     (sfc_set_rx_mode(sa) != 0)) {
 363                         *toggle = !(enabled);
 364                         sfc_warn(sa, "Failed to %s %s mode",
 365                                  ((enabled) ? "enable" : "disable"), desc);
 366                 }
 367         }
 368
 369         sfc_adapter_unlock(sa);
 370 }
 371
 372 static void
 373 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 374 {
 375         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 376 }
 377
 378 static void
 379 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 380 {
 381         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 382 }
 383
 384 static void
 385 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 386 {
 387         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 388 }
 389
 390 static void
 391 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 392 {
 393         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 394 }
 395
 396 static int
 397 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 398                    uint16_t nb_rx_desc, unsigned int socket_id,
 399                    const struct rte_eth_rxconf *rx_conf,
 400                    struct rte_mempool *mb_pool)
 401 {
 402         struct sfc_adapter *sa = dev->data->dev_private;
 403         int rc;
 404
 405         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 406                      rx_queue_id, nb_rx_desc, socket_id);
 407
 408         sfc_adapter_lock(sa);
 409
 410         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 411                           rx_conf, mb_pool);
 412         if (rc != 0)
 413                 goto fail_rx_qinit;
 414
 415         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 416
 417         sfc_adapter_unlock(sa);
 418
 419         return 0;
 420
 421 fail_rx_qinit:
 422         sfc_adapter_unlock(sa);
 423         SFC_ASSERT(rc > 0);
 424         return -rc;
 425 }
 426
 427 static void
 428 sfc_rx_queue_release(void *queue)
 429 {
 430         struct sfc_dp_rxq *dp_rxq = queue;
 431         struct sfc_rxq *rxq;
 432         struct sfc_adapter *sa;
 433         unsigned int sw_index;
 434
 435         if (dp_rxq == NULL)
 436                 return;
 437
 438         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 439         sa = rxq->evq->sa;
 440         sfc_adapter_lock(sa);
 441
 442         sw_index = sfc_rxq_sw_index(rxq);
 443
 444         sfc_log_init(sa, "RxQ=%u", sw_index);
 445
 446         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 447
 448         sfc_rx_qfini(sa, sw_index);
 449
 450         sfc_adapter_unlock(sa);
 451 }
 452
 453 static int
 454 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 455                    uint16_t nb_tx_desc, unsigned int socket_id,
 456                    const struct rte_eth_txconf *tx_conf)
 457 {
 458         struct sfc_adapter *sa = dev->data->dev_private;
 459         int rc;
 460
 461         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 462                      tx_queue_id, nb_tx_desc, socket_id);
 463
 464         sfc_adapter_lock(sa);
 465
 466         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 467         if (rc != 0)
 468                 goto fail_tx_qinit;
 469
 470         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 471
 472         sfc_adapter_unlock(sa);
 473         return 0;
 474
 475 fail_tx_qinit:
 476         sfc_adapter_unlock(sa);
 477         SFC_ASSERT(rc > 0);
 478         return -rc;
 479 }
 480
 481 static void
 482 sfc_tx_queue_release(void *queue)
 483 {
 484         struct sfc_dp_txq *dp_txq = queue;
 485         struct sfc_txq *txq;
 486         unsigned int sw_index;
 487         struct sfc_adapter *sa;
 488
 489         if (dp_txq == NULL)
 490                 return;
 491
 492         txq = sfc_txq_by_dp_txq(dp_txq);
 493         sw_index = sfc_txq_sw_index(txq);
 494
 495         SFC_ASSERT(txq->evq != NULL);
 496         sa = txq->evq->sa;
 497
 498         sfc_log_init(sa, "TxQ = %u", sw_index);
 499
 500         sfc_adapter_lock(sa);
 501
 502         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 503         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 504
 505         sfc_tx_qfini(sa, sw_index);
 506
 507         sfc_adapter_unlock(sa);
 508 }
 509
 510 static void
 511 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 512 {
 513         struct sfc_adapter *sa = dev->data->dev_private;
 514         struct sfc_port *port = &sa->port;
 515         uint64_t *mac_stats;
 516
 517         rte_spinlock_lock(&port->mac_stats_lock);
 518
 519         if (sfc_port_update_mac_stats(sa) != 0)
 520                 goto unlock;
 521
 522         mac_stats = port->mac_stats_buf;
 523
 524         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 525                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 526                 stats->ipackets =
 527                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 528                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 529                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 530                 stats->opackets =
 531                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 532                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 533                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 534                 stats->ibytes =
 535                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 536                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 537                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 538                 stats->obytes =
 539                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 540                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 541                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 542                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 543                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 544                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 545         } else {
 546                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 547                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 548                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 549                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 550                 /*
 551                  * Take into account stats which are whenever supported
 552                  * on EF10. If some stat is not supported by current
 553                  * firmware variant or HW revision, it is guaranteed
 554                  * to be zero in mac_stats.
 555                  */
 556                 stats->imissed =
 557                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 558                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 559                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 560                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 561                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 562                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 563                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 564                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 565                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 566                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 567                 stats->ierrors =
 568                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 569                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 570                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 571                 /* no oerrors counters supported on EF10 */
 572         }
 573
 574 unlock:
 575         rte_spinlock_unlock(&port->mac_stats_lock);
 576 }
 577
 578 static void
 579 sfc_stats_reset(struct rte_eth_dev *dev)
 580 {
 581         struct sfc_adapter *sa = dev->data->dev_private;
 582         struct sfc_port *port = &sa->port;
 583         int rc;
 584
 585         if (sa->state != SFC_ADAPTER_STARTED) {
 586                 /*
 587                  * The operation cannot be done if port is not started; it
 588                  * will be scheduled to be done during the next port start
 589                  */
 590                 port->mac_stats_reset_pending = B_TRUE;
 591                 return;
 592         }
 593
 594         rc = sfc_port_reset_mac_stats(sa);
 595         if (rc != 0)
 596                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 597 }
 598
 599 static int
 600 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 601                unsigned int xstats_count)
 602 {
 603         struct sfc_adapter *sa = dev->data->dev_private;
 604         struct sfc_port *port = &sa->port;
 605         uint64_t *mac_stats;
 606         int rc;
 607         unsigned int i;
 608         int nstats = 0;
 609
 610         rte_spinlock_lock(&port->mac_stats_lock);
 611
 612         rc = sfc_port_update_mac_stats(sa);
 613         if (rc != 0) {
 614                 SFC_ASSERT(rc > 0);
 615                 nstats = -rc;
 616                 goto unlock;
 617         }
 618
 619         mac_stats = port->mac_stats_buf;
 620
 621         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 622                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 623                         if (xstats != NULL && nstats < (int)xstats_count) {
 624                                 xstats[nstats].id = nstats;
 625                                 xstats[nstats].value = mac_stats[i];
 626                         }
 627                         nstats++;
 628                 }
 629         }
 630
 631 unlock:
 632         rte_spinlock_unlock(&port->mac_stats_lock);
 633
 634         return nstats;
 635 }
 636
 637 static int
 638 sfc_xstats_get_names(struct rte_eth_dev *dev,
 639                      struct rte_eth_xstat_name *xstats_names,
 640                      unsigned int xstats_count)
 641 {
 642         struct sfc_adapter *sa = dev->data->dev_private;
 643         struct sfc_port *port = &sa->port;
 644         unsigned int i;
 645         unsigned int nstats = 0;
 646
 647         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 648                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 649                         if (xstats_names != NULL && nstats < xstats_count)
 650                                 strncpy(xstats_names[nstats].name,
 651                                         efx_mac_stat_name(sa->nic, i),
 652                                         sizeof(xstats_names[0].name));
 653                         nstats++;
 654                 }
 655         }
 656
 657         return nstats;
 658 }
 659
 660 static int
 661 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 662 {
 663         struct sfc_adapter *sa = dev->data->dev_private;
 664         unsigned int wanted_fc, link_fc;
 665
 666         memset(fc_conf, 0, sizeof(*fc_conf));
 667
 668         sfc_adapter_lock(sa);
 669
 670         if (sa->state == SFC_ADAPTER_STARTED)
 671                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 672         else
 673                 link_fc = sa->port.flow_ctrl;
 674
 675         switch (link_fc) {
 676         case 0:
 677                 fc_conf->mode = RTE_FC_NONE;
 678                 break;
 679         case EFX_FCNTL_RESPOND:
 680                 fc_conf->mode = RTE_FC_RX_PAUSE;
 681                 break;
 682         case EFX_FCNTL_GENERATE:
 683                 fc_conf->mode = RTE_FC_TX_PAUSE;
 684                 break;
 685         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 686                 fc_conf->mode = RTE_FC_FULL;
 687                 break;
 688         default:
 689                 sfc_err(sa, "%s: unexpected flow control value %#x",
 690                         __func__, link_fc);
 691         }
 692
 693         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 694
 695         sfc_adapter_unlock(sa);
 696
 697         return 0;
 698 }
 699
 700 static int
 701 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 702 {
 703         struct sfc_adapter *sa = dev->data->dev_private;
 704         struct sfc_port *port = &sa->port;
 705         unsigned int fcntl;
 706         int rc;
 707
 708         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 709             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 710             fc_conf->mac_ctrl_frame_fwd != 0) {
 711                 sfc_err(sa, "unsupported flow control settings specified");
 712                 rc = EINVAL;
 713                 goto fail_inval;
 714         }
 715
 716         switch (fc_conf->mode) {
 717         case RTE_FC_NONE:
 718                 fcntl = 0;
 719                 break;
 720         case RTE_FC_RX_PAUSE:
 721                 fcntl = EFX_FCNTL_RESPOND;
 722                 break;
 723         case RTE_FC_TX_PAUSE:
 724                 fcntl = EFX_FCNTL_GENERATE;
 725                 break;
 726         case RTE_FC_FULL:
 727                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 728                 break;
 729         default:
 730                 rc = EINVAL;
 731                 goto fail_inval;
 732         }
 733
 734         sfc_adapter_lock(sa);
 735
 736         if (sa->state == SFC_ADAPTER_STARTED) {
 737                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 738                 if (rc != 0)
 739                         goto fail_mac_fcntl_set;
 740         }
 741
 742         port->flow_ctrl = fcntl;
 743         port->flow_ctrl_autoneg = fc_conf->autoneg;
 744
 745         sfc_adapter_unlock(sa);
 746
 747         return 0;
 748
 749 fail_mac_fcntl_set:
 750         sfc_adapter_unlock(sa);
 751 fail_inval:
 752         SFC_ASSERT(rc > 0);
 753         return -rc;
 754 }
 755
 756 static int
 757 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 758 {
 759         struct sfc_adapter *sa = dev->data->dev_private;
 760         size_t pdu = EFX_MAC_PDU(mtu);
 761         size_t old_pdu;
 762         int rc;
 763
 764         sfc_log_init(sa, "mtu=%u", mtu);
 765
 766         rc = EINVAL;
 767         if (pdu < EFX_MAC_PDU_MIN) {
 768                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 769                         (unsigned int)mtu, (unsigned int)pdu,
 770                         EFX_MAC_PDU_MIN);
 771                 goto fail_inval;
 772         }
 773         if (pdu > EFX_MAC_PDU_MAX) {
 774                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 775                         (unsigned int)mtu, (unsigned int)pdu,
 776                         EFX_MAC_PDU_MAX);
 777                 goto fail_inval;
 778         }
 779
 780         sfc_adapter_lock(sa);
 781
 782         if (pdu != sa->port.pdu) {
 783                 if (sa->state == SFC_ADAPTER_STARTED) {
 784                         sfc_stop(sa);
 785
 786                         old_pdu = sa->port.pdu;
 787                         sa->port.pdu = pdu;
 788                         rc = sfc_start(sa);
 789                         if (rc != 0)
 790                                 goto fail_start;
 791                 } else {
 792                         sa->port.pdu = pdu;
 793                 }
 794         }
 795
 796         /*
 797          * The driver does not use it, but other PMDs update jumbo_frame
 798          * flag and max_rx_pkt_len when MTU is set.
 799          */
 800         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 801         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 802
 803         sfc_adapter_unlock(sa);
 804
 805         sfc_log_init(sa, "done");
 806         return 0;
 807
 808 fail_start:
 809         sa->port.pdu = old_pdu;
 810         if (sfc_start(sa) != 0)
 811                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 812                         "PDU max size - port is stopped",
 813                         (unsigned int)pdu, (unsigned int)old_pdu);
 814         sfc_adapter_unlock(sa);
 815
 816 fail_inval:
 817         sfc_log_init(sa, "failed %d", rc);
 818         SFC_ASSERT(rc > 0);
 819         return -rc;
 820 }
 821 static void
 822 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 823 {
 824         struct sfc_adapter *sa = dev->data->dev_private;
 825         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 826         int rc;
 827
 828         sfc_adapter_lock(sa);
 829
 830         if (sa->state != SFC_ADAPTER_STARTED) {
 831                 sfc_info(sa, "the port is not started");
 832                 sfc_info(sa, "the new MAC address will be set on port start");
 833
 834                 goto unlock;
 835         }
 836
 837         if (encp->enc_allow_set_mac_with_installed_filters) {
 838                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 839                 if (rc != 0) {
 840                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 841                         goto unlock;
 842                 }
 843
 844                 /*
 845                  * Changing the MAC address by means of MCDI request
 846                  * has no effect on received traffic, therefore
 847                  * we also need to update unicast filters
 848                  */
 849                 rc = sfc_set_rx_mode(sa);
 850                 if (rc != 0)
 851                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 852         } else {
 853                 sfc_warn(sa, "cannot set MAC address with filters installed");
 854                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 855                 sfc_warn(sa, "(some traffic may be dropped)");
 856
 857                 /*
 858                  * Since setting MAC address with filters installed is not
 859                  * allowed on the adapter, one needs to simply restart adapter
 860                  * so that the new MAC address will be taken from an outer
 861                  * storage and set flawlessly by means of sfc_start() call
 862                  */
 863                 sfc_stop(sa);
 864                 rc = sfc_start(sa);
 865                 if (rc != 0)
 866                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 867         }
 868
 869 unlock:
 870         sfc_adapter_unlock(sa);
 871 }
 872
 873
 874 static int
 875 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 876                      uint32_t nb_mc_addr)
 877 {
 878         struct sfc_adapter *sa = dev->data->dev_private;
 879         struct sfc_port *port = &sa->port;
 880         uint8_t *mc_addrs = port->mcast_addrs;
 881         int rc;
 882         unsigned int i;
 883
 884         if (mc_addrs == NULL)
 885                 return -ENOBUFS;
 886
 887         if (nb_mc_addr > port->max_mcast_addrs) {
 888                 sfc_err(sa, "too many multicast addresses: %u > %u",
 889                          nb_mc_addr, port->max_mcast_addrs);
 890                 return -EINVAL;
 891         }
 892
 893         for (i = 0; i < nb_mc_addr; ++i) {
 894                 (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
 895                                  EFX_MAC_ADDR_LEN);
 896                 mc_addrs += EFX_MAC_ADDR_LEN;
 897         }
 898
 899         port->nb_mcast_addrs = nb_mc_addr;
 900
 901         if (sa->state != SFC_ADAPTER_STARTED)
 902                 return 0;
 903
 904         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
 905                                         port->nb_mcast_addrs);
 906         if (rc != 0)
 907                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
 908
 909         SFC_ASSERT(rc > 0);
 910         return -rc;
 911 }
 912
 913 static void
 914 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 915                       struct rte_eth_rxq_info *qinfo)
 916 {
 917         struct sfc_adapter *sa = dev->data->dev_private;
 918         struct sfc_rxq_info *rxq_info;
 919         struct sfc_rxq *rxq;
 920
 921         sfc_adapter_lock(sa);
 922
 923         SFC_ASSERT(rx_queue_id < sa->rxq_count);
 924
 925         rxq_info = &sa->rxq_info[rx_queue_id];
 926         rxq = rxq_info->rxq;
 927         SFC_ASSERT(rxq != NULL);
 928
 929         qinfo->mp = rxq->refill_mb_pool;
 930         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
 931         qinfo->conf.rx_drop_en = 1;
 932         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
 933         qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
 934         qinfo->nb_desc = rxq_info->entries;
 935
 936         sfc_adapter_unlock(sa);
 937 }
 938
 939 static void
 940 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 941                       struct rte_eth_txq_info *qinfo)
 942 {
 943         struct sfc_adapter *sa = dev->data->dev_private;
 944         struct sfc_txq_info *txq_info;
 945
 946         sfc_adapter_lock(sa);
 947
 948         SFC_ASSERT(tx_queue_id < sa->txq_count);
 949
 950         txq_info = &sa->txq_info[tx_queue_id];
 951         SFC_ASSERT(txq_info->txq != NULL);
 952
 953         memset(qinfo, 0, sizeof(*qinfo));
 954
 955         qinfo->conf.txq_flags = txq_info->txq->flags;
 956         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
 957         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
 958         qinfo->nb_desc = txq_info->entries;
 959
 960         sfc_adapter_unlock(sa);
 961 }
 962
 963 static uint32_t
 964 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 965 {
 966         struct sfc_adapter *sa = dev->data->dev_private;
 967
 968         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 969
 970         return sfc_rx_qdesc_npending(sa, rx_queue_id);
 971 }
 972
 973 static int
 974 sfc_rx_descriptor_done(void *queue, uint16_t offset)
 975 {
 976         struct sfc_dp_rxq *dp_rxq = queue;
 977
 978         return sfc_rx_qdesc_done(dp_rxq, offset);
 979 }
 980
 981 static int
 982 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 983 {
 984         struct sfc_adapter *sa = dev->data->dev_private;
 985         int rc;
 986
 987         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 988
 989         sfc_adapter_lock(sa);
 990
 991         rc = EINVAL;
 992         if (sa->state != SFC_ADAPTER_STARTED)
 993                 goto fail_not_started;
 994
 995         rc = sfc_rx_qstart(sa, rx_queue_id);
 996         if (rc != 0)
 997                 goto fail_rx_qstart;
 998
 999         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1000
1001         sfc_adapter_unlock(sa);
1002
1003         return 0;
1004
1005 fail_rx_qstart:
1006 fail_not_started:
1007         sfc_adapter_unlock(sa);
1008         SFC_ASSERT(rc > 0);
1009         return -rc;
1010 }
1011
1012 static int
1013 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1014 {
1015         struct sfc_adapter *sa = dev->data->dev_private;
1016
1017         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1018
1019         sfc_adapter_lock(sa);
1020         sfc_rx_qstop(sa, rx_queue_id);
1021
1022         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1023
1024         sfc_adapter_unlock(sa);
1025
1026         return 0;
1027 }
1028
1029 static int
1030 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1031 {
1032         struct sfc_adapter *sa = dev->data->dev_private;
1033         int rc;
1034
1035         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1036
1037         sfc_adapter_lock(sa);
1038
1039         rc = EINVAL;
1040         if (sa->state != SFC_ADAPTER_STARTED)
1041                 goto fail_not_started;
1042
1043         rc = sfc_tx_qstart(sa, tx_queue_id);
1044         if (rc != 0)
1045                 goto fail_tx_qstart;
1046
1047         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1048
1049         sfc_adapter_unlock(sa);
1050         return 0;
1051
1052 fail_tx_qstart:
1053
1054 fail_not_started:
1055         sfc_adapter_unlock(sa);
1056         SFC_ASSERT(rc > 0);
1057         return -rc;
1058 }
1059
1060 static int
1061 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1062 {
1063         struct sfc_adapter *sa = dev->data->dev_private;
1064
1065         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1066
1067         sfc_adapter_lock(sa);
1068
1069         sfc_tx_qstop(sa, tx_queue_id);
1070
1071         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1072
1073         sfc_adapter_unlock(sa);
1074         return 0;
1075 }
1076
1077 #if EFSYS_OPT_RX_SCALE
1078 static int
1079 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1080                           struct rte_eth_rss_conf *rss_conf)
1081 {
1082         struct sfc_adapter *sa = dev->data->dev_private;
1083
1084         if ((sa->rss_channels == 1) ||
1085             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1086                 return -ENOTSUP;
1087
1088         sfc_adapter_lock(sa);
1089
1090         /*
1091          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1092          * hence, conversion is done here to derive a correct set of ETH_RSS
1093          * flags which corresponds to the active EFX configuration stored
1094          * locally in 'sfc_adapter' and kept up-to-date
1095          */
1096         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1097         rss_conf->rss_key_len = SFC_RSS_KEY_SIZE;
1098         if (rss_conf->rss_key != NULL)
1099                 rte_memcpy(rss_conf->rss_key, sa->rss_key, SFC_RSS_KEY_SIZE);
1100
1101         sfc_adapter_unlock(sa);
1102
1103         return 0;
1104 }
1105
1106 static int
1107 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1108                         struct rte_eth_rss_conf *rss_conf)
1109 {
1110         struct sfc_adapter *sa = dev->data->dev_private;
1111         unsigned int efx_hash_types;
1112         int rc = 0;
1113
1114         if ((sa->rss_channels == 1) ||
1115             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1116                 sfc_err(sa, "RSS is not available");
1117                 return -ENOTSUP;
1118         }
1119
1120         if ((rss_conf->rss_key != NULL) &&
1121             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1122                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1123                         sizeof(sa->rss_key));
1124                 return -EINVAL;
1125         }
1126
1127         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1128                 sfc_err(sa, "unsupported hash functions requested");
1129                 return -EINVAL;
1130         }
1131
1132         sfc_adapter_lock(sa);
1133
1134         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1135
1136         rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1137                                    efx_hash_types, B_TRUE);
1138         if (rc != 0)
1139                 goto fail_scale_mode_set;
1140
1141         if (rss_conf->rss_key != NULL) {
1142                 if (sa->state == SFC_ADAPTER_STARTED) {
1143                         rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key,
1144                                                   sizeof(sa->rss_key));
1145                         if (rc != 0)
1146                                 goto fail_scale_key_set;
1147                 }
1148
1149                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1150         }
1151
1152         sa->rss_hash_types = efx_hash_types;
1153
1154         sfc_adapter_unlock(sa);
1155
1156         return 0;
1157
1158 fail_scale_key_set:
1159         if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1160                                   sa->rss_hash_types, B_TRUE) != 0)
1161                 sfc_err(sa, "failed to restore RSS mode");
1162
1163 fail_scale_mode_set:
1164         sfc_adapter_unlock(sa);
1165         return -rc;
1166 }
1167
1168 static int
1169 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1170                        struct rte_eth_rss_reta_entry64 *reta_conf,
1171                        uint16_t reta_size)
1172 {
1173         struct sfc_adapter *sa = dev->data->dev_private;
1174         int entry;
1175
1176         if ((sa->rss_channels == 1) ||
1177             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1178                 return -ENOTSUP;
1179
1180         if (reta_size != EFX_RSS_TBL_SIZE)
1181                 return -EINVAL;
1182
1183         sfc_adapter_lock(sa);
1184
1185         for (entry = 0; entry < reta_size; entry++) {
1186                 int grp = entry / RTE_RETA_GROUP_SIZE;
1187                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1188
1189                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1190                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1191         }
1192
1193         sfc_adapter_unlock(sa);
1194
1195         return 0;
1196 }
1197
1198 static int
1199 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1200                         struct rte_eth_rss_reta_entry64 *reta_conf,
1201                         uint16_t reta_size)
1202 {
1203         struct sfc_adapter *sa = dev->data->dev_private;
1204         unsigned int *rss_tbl_new;
1205         uint16_t entry;
1206         int rc;
1207
1208
1209         if ((sa->rss_channels == 1) ||
1210             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1211                 sfc_err(sa, "RSS is not available");
1212                 return -ENOTSUP;
1213         }
1214
1215         if (reta_size != EFX_RSS_TBL_SIZE) {
1216                 sfc_err(sa, "RETA size is wrong (should be %u)",
1217                         EFX_RSS_TBL_SIZE);
1218                 return -EINVAL;
1219         }
1220
1221         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1222         if (rss_tbl_new == NULL)
1223                 return -ENOMEM;
1224
1225         sfc_adapter_lock(sa);
1226
1227         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1228
1229         for (entry = 0; entry < reta_size; entry++) {
1230                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1231                 struct rte_eth_rss_reta_entry64 *grp;
1232
1233                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1234
1235                 if (grp->mask & (1ull << grp_idx)) {
1236                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1237                                 rc = EINVAL;
1238                                 goto bad_reta_entry;
1239                         }
1240                         rss_tbl_new[entry] = grp->reta[grp_idx];
1241                 }
1242         }
1243
1244         rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE);
1245         if (rc == 0)
1246                 rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1247
1248 bad_reta_entry:
1249         sfc_adapter_unlock(sa);
1250
1251         rte_free(rss_tbl_new);
1252
1253         SFC_ASSERT(rc >= 0);
1254         return -rc;
1255 }
1256 #endif
1257
1258 static int
1259 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1260                     enum rte_filter_op filter_op,
1261                     void *arg)
1262 {
1263         struct sfc_adapter *sa = dev->data->dev_private;
1264         int rc = ENOTSUP;
1265
1266         sfc_log_init(sa, "entry");
1267
1268         switch (filter_type) {
1269         case RTE_ETH_FILTER_NONE:
1270                 sfc_err(sa, "Global filters configuration not supported");
1271                 break;
1272         case RTE_ETH_FILTER_MACVLAN:
1273                 sfc_err(sa, "MACVLAN filters not supported");
1274                 break;
1275         case RTE_ETH_FILTER_ETHERTYPE:
1276                 sfc_err(sa, "EtherType filters not supported");
1277                 break;
1278         case RTE_ETH_FILTER_FLEXIBLE:
1279                 sfc_err(sa, "Flexible filters not supported");
1280                 break;
1281         case RTE_ETH_FILTER_SYN:
1282                 sfc_err(sa, "SYN filters not supported");
1283                 break;
1284         case RTE_ETH_FILTER_NTUPLE:
1285                 sfc_err(sa, "NTUPLE filters not supported");
1286                 break;
1287         case RTE_ETH_FILTER_TUNNEL:
1288                 sfc_err(sa, "Tunnel filters not supported");
1289                 break;
1290         case RTE_ETH_FILTER_FDIR:
1291                 sfc_err(sa, "Flow Director filters not supported");
1292                 break;
1293         case RTE_ETH_FILTER_HASH:
1294                 sfc_err(sa, "Hash filters not supported");
1295                 break;
1296         case RTE_ETH_FILTER_GENERIC:
1297                 if (filter_op != RTE_ETH_FILTER_GET) {
1298                         rc = EINVAL;
1299                 } else {
1300                         *(const void **)arg = &sfc_flow_ops;
1301                         rc = 0;
1302                 }
1303                 break;
1304         default:
1305                 sfc_err(sa, "Unknown filter type %u", filter_type);
1306                 break;
1307         }
1308
1309         sfc_log_init(sa, "exit: %d", -rc);
1310         SFC_ASSERT(rc >= 0);
1311         return -rc;
1312 }
1313
1314 static const struct eth_dev_ops sfc_eth_dev_ops = {
1315         .dev_configure                  = sfc_dev_configure,
1316         .dev_start                      = sfc_dev_start,
1317         .dev_stop                       = sfc_dev_stop,
1318         .dev_set_link_up                = sfc_dev_set_link_up,
1319         .dev_set_link_down              = sfc_dev_set_link_down,
1320         .dev_close                      = sfc_dev_close,
1321         .promiscuous_enable             = sfc_dev_promisc_enable,
1322         .promiscuous_disable            = sfc_dev_promisc_disable,
1323         .allmulticast_enable            = sfc_dev_allmulti_enable,
1324         .allmulticast_disable           = sfc_dev_allmulti_disable,
1325         .link_update                    = sfc_dev_link_update,
1326         .stats_get                      = sfc_stats_get,
1327         .stats_reset                    = sfc_stats_reset,
1328         .xstats_get                     = sfc_xstats_get,
1329         .xstats_reset                   = sfc_stats_reset,
1330         .xstats_get_names               = sfc_xstats_get_names,
1331         .dev_infos_get                  = sfc_dev_infos_get,
1332         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1333         .mtu_set                        = sfc_dev_set_mtu,
1334         .rx_queue_start                 = sfc_rx_queue_start,
1335         .rx_queue_stop                  = sfc_rx_queue_stop,
1336         .tx_queue_start                 = sfc_tx_queue_start,
1337         .tx_queue_stop                  = sfc_tx_queue_stop,
1338         .rx_queue_setup                 = sfc_rx_queue_setup,
1339         .rx_queue_release               = sfc_rx_queue_release,
1340         .rx_queue_count                 = sfc_rx_queue_count,
1341         .rx_descriptor_done             = sfc_rx_descriptor_done,
1342         .tx_queue_setup                 = sfc_tx_queue_setup,
1343         .tx_queue_release               = sfc_tx_queue_release,
1344         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1345         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1346         .mac_addr_set                   = sfc_mac_addr_set,
1347 #if EFSYS_OPT_RX_SCALE
1348         .reta_update                    = sfc_dev_rss_reta_update,
1349         .reta_query                     = sfc_dev_rss_reta_query,
1350         .rss_hash_update                = sfc_dev_rss_hash_update,
1351         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1352 #endif
1353         .filter_ctrl                    = sfc_dev_filter_ctrl,
1354         .set_mc_addr_list               = sfc_set_mc_addr_list,
1355         .rxq_info_get                   = sfc_rx_queue_info_get,
1356         .txq_info_get                   = sfc_tx_queue_info_get,
1357         .fw_version_get                 = sfc_fw_version_get,
1358 };
1359
1360 static int
1361 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1362 {
1363         struct sfc_adapter *sa = dev->data->dev_private;
1364         unsigned int avail_caps = 0;
1365         const char *rx_name = NULL;
1366         const char *tx_name = NULL;
1367         int rc;
1368
1369         if (sa == NULL || sa->state == SFC_ADAPTER_UNINITIALIZED)
1370                 return -E_RTE_SECONDARY;
1371
1372         switch (sa->family) {
1373         case EFX_FAMILY_HUNTINGTON:
1374         case EFX_FAMILY_MEDFORD:
1375                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1376                 break;
1377         default:
1378                 break;
1379         }
1380
1381         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1382                                 sfc_kvarg_string_handler, &rx_name);
1383         if (rc != 0)
1384                 goto fail_kvarg_rx_datapath;
1385
1386         if (rx_name != NULL) {
1387                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1388                 if (sa->dp_rx == NULL) {
1389                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1390                         rc = ENOENT;
1391                         goto fail_dp_rx;
1392                 }
1393                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1394                         sfc_err(sa,
1395                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1396                                 rx_name);
1397                         rc = EINVAL;
1398                         goto fail_dp_rx;
1399                 }
1400         } else {
1401                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1402                 if (sa->dp_rx == NULL) {
1403                         sfc_err(sa, "Rx datapath by caps %#x not found",
1404                                 avail_caps);
1405                         rc = ENOENT;
1406                         goto fail_dp_rx;
1407                 }
1408         }
1409
1410         sfc_info(sa, "use %s Rx datapath", sa->dp_rx->dp.name);
1411
1412         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1413
1414         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1415                                 sfc_kvarg_string_handler, &tx_name);
1416         if (rc != 0)
1417                 goto fail_kvarg_tx_datapath;
1418
1419         if (tx_name != NULL) {
1420                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1421                 if (sa->dp_tx == NULL) {
1422                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1423                         rc = ENOENT;
1424                         goto fail_dp_tx;
1425                 }
1426                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1427                         sfc_err(sa,
1428                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1429                                 tx_name);
1430                         rc = EINVAL;
1431                         goto fail_dp_tx;
1432                 }
1433         } else {
1434                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1435                 if (sa->dp_tx == NULL) {
1436                         sfc_err(sa, "Tx datapath by caps %#x not found",
1437                                 avail_caps);
1438                         rc = ENOENT;
1439                         goto fail_dp_tx;
1440                 }
1441         }
1442
1443         sfc_info(sa, "use %s Tx datapath", sa->dp_tx->dp.name);
1444
1445         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1446
1447         dev->dev_ops = &sfc_eth_dev_ops;
1448
1449         return 0;
1450
1451 fail_dp_tx:
1452 fail_kvarg_tx_datapath:
1453 fail_dp_rx:
1454 fail_kvarg_rx_datapath:
1455         return rc;
1456 }
1457
1458 static void
1459 sfc_register_dp(void)
1460 {
1461         /* Register once */
1462         if (TAILQ_EMPTY(&sfc_dp_head)) {
1463                 /* Prefer EF10 datapath */
1464                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1465                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1466
1467                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1468         }
1469 }
1470
1471 static int
1472 sfc_eth_dev_init(struct rte_eth_dev *dev)
1473 {
1474         struct sfc_adapter *sa = dev->data->dev_private;
1475         struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev);
1476         int rc;
1477         const efx_nic_cfg_t *encp;
1478         const struct ether_addr *from;
1479
1480         sfc_register_dp();
1481
1482         /* Required for logging */
1483         sa->eth_dev = dev;
1484
1485         /* Copy PCI device info to the dev->data */
1486         rte_eth_copy_pci_info(dev, pci_dev);
1487
1488         rc = sfc_kvargs_parse(sa);
1489         if (rc != 0)
1490                 goto fail_kvargs_parse;
1491
1492         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1493                                 sfc_kvarg_bool_handler, &sa->debug_init);
1494         if (rc != 0)
1495                 goto fail_kvarg_debug_init;
1496
1497         sfc_log_init(sa, "entry");
1498
1499         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1500         if (dev->data->mac_addrs == NULL) {
1501                 rc = ENOMEM;
1502                 goto fail_mac_addrs;
1503         }
1504
1505         sfc_adapter_lock_init(sa);
1506         sfc_adapter_lock(sa);
1507
1508         sfc_log_init(sa, "attaching");
1509         rc = sfc_attach(sa);
1510         if (rc != 0)
1511                 goto fail_attach;
1512
1513         encp = efx_nic_cfg_get(sa->nic);
1514
1515         /*
1516          * The arguments are really reverse order in comparison to
1517          * Linux kernel. Copy from NIC config to Ethernet device data.
1518          */
1519         from = (const struct ether_addr *)(encp->enc_mac_addr);
1520         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1521
1522         sfc_adapter_unlock(sa);
1523
1524         sfc_eth_dev_set_ops(dev);
1525
1526         sfc_log_init(sa, "done");
1527         return 0;
1528
1529 fail_attach:
1530         sfc_adapter_unlock(sa);
1531         sfc_adapter_lock_fini(sa);
1532         rte_free(dev->data->mac_addrs);
1533         dev->data->mac_addrs = NULL;
1534
1535 fail_mac_addrs:
1536 fail_kvarg_debug_init:
1537         sfc_kvargs_cleanup(sa);
1538
1539 fail_kvargs_parse:
1540         sfc_log_init(sa, "failed %d", rc);
1541         SFC_ASSERT(rc > 0);
1542         return -rc;
1543 }
1544
1545 static int
1546 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1547 {
1548         struct sfc_adapter *sa = dev->data->dev_private;
1549
1550         sfc_log_init(sa, "entry");
1551
1552         sfc_adapter_lock(sa);
1553
1554         sfc_detach(sa);
1555
1556         rte_free(dev->data->mac_addrs);
1557         dev->data->mac_addrs = NULL;
1558
1559         dev->dev_ops = NULL;
1560         dev->rx_pkt_burst = NULL;
1561         dev->tx_pkt_burst = NULL;
1562
1563         sfc_kvargs_cleanup(sa);
1564
1565         sfc_adapter_unlock(sa);
1566         sfc_adapter_lock_fini(sa);
1567
1568         sfc_log_init(sa, "done");
1569
1570         /* Required for logging, so cleanup last */
1571         sa->eth_dev = NULL;
1572         return 0;
1573 }
1574
1575 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
1576         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
1577         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
1578         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
1579         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
1580         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
1581         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
1582         { .vendor_id = 0 /* sentinel */ }
1583 };
1584
1585 static struct eth_driver sfc_efx_pmd = {
1586         .pci_drv = {
1587                 .id_table = pci_id_sfc_efx_map,
1588                 .drv_flags =
1589                         RTE_PCI_DRV_INTR_LSC |
1590                         RTE_PCI_DRV_NEED_MAPPING,
1591                 .probe = rte_eth_dev_pci_probe,
1592                 .remove = rte_eth_dev_pci_remove,
1593         },
1594         .eth_dev_init = sfc_eth_dev_init,
1595         .eth_dev_uninit = sfc_eth_dev_uninit,
1596         .dev_private_size = sizeof(struct sfc_adapter),
1597 };
1598
1599 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv);
1600 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
1601 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio");
1602 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
1603         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
1604         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
1605         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
1606         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
1607         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
1608         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);